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Finding the Fourth Proportional to 6,810.48, 9,376.92 and 6,187.62

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Solution

The fourth proportional to 6,810.48, 9,376.92 and 6,187.62 is: 8,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,810.48 : 9,376.92 = 6,187.62 : x
  2. Step 2: Convert to fraction form
    6,810.48/9,376.92 = 6,187.62/x
  3. Step 3: Cross multiply
    6,810.48x = 9,376.92 × 6,187.62
  4. Step 4: Simplify right side
    6,810.48x = 58,020,817.73
  5. Step 5: Solve for x
    x = 58,020,817.73/6,810.48
  6. Step 6: Final answer
    x = 8,519.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.